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1.怎样提高制种产量提高制种产量是降低成本,增加收入的根本措施。因此,制种单位和制种农户对提高制种产量都非常重视。 (1)要选好地。选好地是提高制种产量的一个重要因素。高粱不育系植株一般较矮小,生长势较弱,要求有较好的生长条件。应选择土壤较肥沃、保水能力较强或水源方便的地块。 (2)增加密度。保证株数是提高产量的基础。根据各地区种植方式和父本植株高度、花粉量的多少确定母本行数。东北地区多为大垅栽培,父母本比例以2:6、1:3或1:4为宜。
1. How to improve seed production To increase seed production is the fundamental measure to reduce costs and increase incomes. Therefore, seed production units and seed producers are paying more attention to improving seed production. (1) to choose well. Well-chosen is an important factor in increasing seed production. Sorghum male sterile lines generally shorter plants, growth potential is weak, require better growth conditions. Should choose the soil more fertile, strong water retention capacity or water plots. (2) increase the density. The number of guaranteed plants is the basis for increased production. According to the method of planting in each region and the height of the male parent, the amount of pollen determines the number of female parent rows. Northeast China mostly cultivation of big bream, the proportion of parents to 2: 6, 1: 3 or 1: 4 is appropriate.